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Generac Power Systems OHVI GSH 410 User Manual

Generac Power Systems OHVI GSH 410
72 pages
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GENERAC
®
POWER SYSTEMS, INC.
P. O. BOx 310
EaglE, WI 53119
Part No. 0C1103A
Printed in USA
Revision A (06/20/06)
0c1103A_Cover.indd 1 6/22/2006 10:31:02 AM
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Generac Power Systems OHVI GSH 410 Specifications

General IconGeneral
Displacement410 cc
Fuel TypeGasoline
Cooling SystemAir-Cooled
Compression Ratio8.5:1
Fuel SystemCarburetor
Governed Speed3600 RPM
Lubrication SystemSplash
Starting SystemElectric/Recoil
Engine TypeOHVI (Overhead Valve Industrial)
Oil Capacity1.2 L

Summary

Rules for Safe Operation

DANGER, WARNING, CAUTION, NOTE Definitions

Defines safety alert levels and symbols used in the manual.

Before Operating

Key safety precautions to follow before starting the engine.

While Operating

Critical safety guidelines for operating the engine.

Section 1: General Information

Troubleshooting

Common engine problems and systematic checks for diagnosis.

Cylinder Leakdown Test

Procedure for testing cylinder sealing capability using a leakdown tester.

Section 2: Ignition

Testing the Ignition System

Methods and procedures for testing the engine's ignition system.

Section 3: Air Intake System and Carburetion

Carburetion

Explanation of the carburetion system and common problems.

Common Carburetor Problems

Identifies common issues related to carburetor performance and maintenance.

Carburetor Cleaning and Inspection

Procedures for cleaning and inspecting the carburetor for optimal function.

Carburetor Adjustment

Steps for performing initial and final adjustments to the carburetor.

Final Adjustment

Final steps for adjusting carburetor settings after maintenance.

Section 4: Mechanical Governor

Governor Gear Shaft Replacement

Procedures for removing and replacing the governor gear shaft.

Governor Adjustment

Initial and running adjustments for the engine's governor system.

Section 5: Optional Idle Control

Idle Control Adjustment

Procedures for adjusting the automatic idle control system for optimal engine speed.

Section 6: Cylinder Head and Valves

Disassembly

Step-by-step instructions for disassembling the cylinder head and valve train.

Valve Service

Procedures for servicing valves, including lapping and seat cutting.

Installation

Procedures for installing valve train components after servicing.

Adjusting Valve Clearance

Steps for adjusting the valve clearance to the specified tolerance.

Section 7: Rewind Starters

Section 8: Electric Starter

Testing the Starter Motor

Methods and tools for testing starter motor performance and diagnosing issues.

Testing a Battery

Procedures for testing a removable vent cap battery using a hydrometer.

Section 9: Lubrication System

Low Oil Pressure System

Explains the low oil pressure warning indicator and automatic engine shutdown system.

Section 11: Crankshaft & Camshaft

Section 12: Piston, Rings & Connecting Rod Inspection & Assembly

Section 13: Troubleshooting

Check Fuel System

Steps to diagnose fuel system issues when the engine fails to start or run properly.

Check Ignition System

Guidance on checking the engine's ignition system for faults.

Check Compression

Methods for checking engine compression and identifying causes of low compression.

Section 15: Specifications - Large Frame Engines

Torque Specifications

Torque values for various fasteners and components in the engine assembly.

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